Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
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114 lines
4.7 KiB
114 lines
4.7 KiB
# Abseil - C++ Common Libraries |
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The repository contains the Abseil C++ library code. Abseil is an open-source |
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collection of C++ code (compliant to C++11) designed to augment the C++ |
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standard library. |
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## Table of Contents |
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- [About Abseil](#about) |
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- [Quickstart](#quickstart) |
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- [Building Abseil](#build) |
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- [Codemap](#codemap) |
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- [License](#license) |
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- [Links](#links) |
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<a name="about"></a> |
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## About Abseil |
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Abseil is an open-source collection of C++ library code designed to augment |
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the C++ standard library. The Abseil library code is collected from Google's |
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own C++ code base, has been extensively tested and used in production, and |
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is the same code we depend on in our daily coding lives. |
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In some cases, Abseil provides pieces missing from the C++ standard; in |
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others, Abseil provides alternatives to the standard for special needs |
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we've found through usage in the Google code base. We denote those cases |
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clearly within the library code we provide you. |
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Abseil is not meant to be a competitor to the standard library; we've |
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just found that many of these utilities serve a purpose within our code |
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base, and we now want to provide those resources to the C++ community as |
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a whole. |
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<a name="quickstart"></a> |
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## Quickstart |
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If you want to just get started, make sure you at least run through the |
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[Abseil Quickstart](https://abseil.io/docs/cpp/quickstart). The Quickstart |
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contains information about setting up your development environment, downloading |
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the Abseil code, running tests, and getting a simple binary working. |
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<a name="build"></a> |
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## Building Abseil |
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[Bazel](https://bazel.build) is the official build system for Abseil, |
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which is supported on most major platforms (Linux, Windows, MacOS, for example) |
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and compilers. See the [quickstart](https://abseil.io/docs/cpp/quickstart) for |
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more information on building Abseil using the Bazel build system. |
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<a name="cmake"></a> |
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If you require CMake support, please check the |
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[CMake build instructions](CMake/README.md). |
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## Codemap |
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Abseil contains the following C++ library components: |
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* [`base`](absl/base/) Abseil Fundamentals |
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<br /> The `base` library contains initialization code and other code which |
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all other Abseil code depends on. Code within `base` may not depend on any |
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other code (other than the C++ standard library). |
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* [`algorithm`](absl/algorithm/) |
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<br /> The `algorithm` library contains additions to the C++ `<algorithm>` |
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library and container-based versions of such algorithms. |
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* [`container`](absl/container/) |
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<br /> The `container` library contains additional STL-style containers, |
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including Abseil's unordered "Swiss table" containers. |
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* [`debugging`](absl/debugging/) |
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<br /> The `debugging` library contains code useful for enabling leak |
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checks, and stacktrace and symbolization utilities. |
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* [`hash`](absl/hash/) |
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<br /> The `hash` library contains the hashing framework and default hash |
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functor implementations for hashable types in Abseil. |
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* [`memory`](absl/memory/) |
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<br /> The `memory` library contains C++11-compatible versions of |
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`std::make_unique()` and related memory management facilities. |
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* [`meta`](absl/meta/) |
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<br /> The `meta` library contains C++11-compatible versions of type checks |
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available within C++14 and C++17 versions of the C++ `<type_traits>` library. |
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* [`numeric`](absl/numeric/) |
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<br /> The `numeric` library contains C++11-compatible 128-bit integers. |
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* [`strings`](absl/strings/) |
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<br /> The `strings` library contains a variety of strings routines and |
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utilities, including a C++11-compatible version of the C++17 |
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`std::string_view` type. |
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* [`synchronization`](absl/synchronization/) |
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<br /> The `synchronization` library contains concurrency primitives (Abseil's |
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`absl::Mutex` class, an alternative to `std::mutex`) and a variety of |
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synchronization abstractions. |
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* [`time`](absl/time/) |
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<br /> The `time` library contains abstractions for computing with absolute |
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points in time, durations of time, and formatting and parsing time within |
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time zones. |
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* [`types`](absl/types/) |
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<br /> The `types` library contains non-container utility types, like a |
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C++11-compatible version of the C++17 `std::optional` type. |
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* [`utility`](absl/utility/) |
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<br /> The `utility` library contains utility and helper code. |
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## License |
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The Abseil C++ library is licensed under the terms of the Apache |
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license. See [LICENSE](LICENSE) for more information. |
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## Links |
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For more information about Abseil: |
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* Consult our [Abseil Introduction](https://abseil.io/about/intro) |
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* Read [Why Adopt Abseil](https://abseil.io/about/philosophy) to understand our |
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design philosophy. |
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* Peruse our |
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[Abseil Compatibility Guarantees](https://abseil.io/about/compatibility) to |
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understand both what we promise to you, and what we expect of you in return.
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